Each window lists what to do and when, tuned to Charlotte's climate and Tall Fescue. Timing runs on soil temperature, so treat these as guides and confirm with the current soil temp.
Feb - early MarApply your first cool-season feed to tall fescue (1 lb N / 1,000 sq ft). Get the spring crabgrass pre-emergent down in early March, 7-10 days before Piedmont soil holds a steady 55°F.
Mar - MayMow fescue at 2.5-3.5 in. Spot-seed thin fescue only if needed. Warm-season owners: scalp Bermuda/Zoysia low at green-up (April) and apply their pre-emergent late Feb-mid Mar.
Late Apr - MayBermuda and Zoysia green up — give them their first warm-season feed (0.5-1 lb N) once fully green, based on a soil test. Late May is the window for warm-season seeding or sod repairs.
Jun - AugDo NOT fertilize tall fescue in summer heat — it fuels brown patch. Raise fescue mowing to 3.5 in and water deeply. Feed Bermuda/Zoysia 1 lb N every 4-6 weeks; watch fescue for brown patch fungus.
Sep 1 - Oct 1Prime time for cool-season lawns: aerate the clay, overseed thin tall fescue at ~6 lb seed / 1,000 sq ft, and apply the first fall feed (1 lb N) mid-September. Stop fertilizing warm-season grass now.
Oct - NovSecond fall feed for tall fescue (1 lb N) in November drives strong roots. Keep mowing fescue and remove fallen leaves. Warm-season grasses head into dormancy — leave them alone.
Dec - FebMow fescue at ~3 in only as needed and clear debris. Control winter broadleaf weeds (chickweed, henbit) on dormant warm-season lawns. Do not fertilize Bermuda or Zoysia.